Vow

A vow is a promise or oath.

205061

Sayyed Mohammad Al-Musawi, Sayyed Mohammad al-Musawi is originally from Iraq and heads up the World Ahlul Bayt Islamic League in London. Other than being involved in various humanitarian projects, he frequently responds to... Answered 4 months ago

If you made an intention to fast on a specific day as a vow or Nathr نذر then you must fast on that specific day even if you did not state it verbally. If your intention was to fast after the event, then you are not bound to fast but after the event. If your intention was for fast anyway with out a condition, then you can fast any time before or after the event.

Wassalam.

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Zaid Alsalami, Shaykh Dr Zaid Alsalami is an Iraqi born scholar, raised in Australia. He obtained a BA from Al-Mustafa University, Qom, and an MA from the Islamic College in London. He also obtained a PhD from... Answered 5 months ago

Bismihi ta'āla

No, it carries no validity.

And Allah knows best

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Sayyed Mohammad Al-Musawi, Sayyed Mohammad al-Musawi is originally from Iraq and heads up the World Ahlul Bayt Islamic League in London. Other than being involved in various humanitarian projects, he frequently responds to... Answered 7 months ago

Fulfilling the Nadhr نذر (vow) is compulsory. You must fulfill whatever you remember.

Wassalam.

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Sayyed Mohammad Al-Musawi, Sayyed Mohammad al-Musawi is originally from Iraq and heads up the World Ahlul Bayt Islamic League in London. Other than being involved in various humanitarian projects, he frequently responds to... Answered 10 months ago

Vow نذر when you commit to do a worship like fasting or praying recommended Prayers like Night prayer, or good act like helping needy or give something in good cause if you get your wish. 

Oath يمين is when you take oath to do something good or leave a bad deed like taking oath to leave smoking or leave attending mixed gatherings etc.

Covenant عهد is when you promise Allah (SWT) to do something good or leave something bad.
Fulfillment of vow, oath and covenant is obligatory.

If you don't remember what intention you had, you need to just fulfill what you had committed no matter what was whether vow or oath or covenant as all of them share a commitment which must be fulfilled. Failing to fulfill the commitment is a sinful act.

Wassalam.

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Sayyed Mohammad Al-Musawi, Sayyed Mohammad al-Musawi is originally from Iraq and heads up the World Ahlul Bayt Islamic League in London. Other than being involved in various humanitarian projects, he frequently responds to... Answered 1 year ago

Making a False statement by Qasam or oath or saying Wallah, is a major sin. It is called in the Hadeeth ( Al-Yameen al-Faajirah Al-Ghamoos) (The sinful oath which immerses the liar in the fire).

Seeking forgiveness needs: 1. Giving back the right of any one who was been wronged by this false statements and making him pardon you from his heart.

2. Repenting and feeling sad for what you committed.

3. Firm decision not to do it again.

 4. Seeking forgiveness from Allah (SWT) day and night.

Wassalam.

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Sayyed Mohammad Al-Musawi, Sayyed Mohammad al-Musawi is originally from Iraq and heads up the World Ahlul Bayt Islamic League in London. Other than being involved in various humanitarian projects, he frequently responds to... Answered 1 year ago

Believing that every good is from Allah and every wish is granted by Allah, seeking from Ahlul Bayt (AS) their intercession to Allah to grant us our wishes is very good.

'Wassalam.

172031

Sayyed Muhammad Husaini Ragheb, Sayyed Muhammad Husaini Ragheb has a BA in Law from Guilan University, Iran and has also undertaken Hawzah studies in Qom. He used to be a Cultural Affairs director of Ethics Group of Al-Mustafa... Answered 2 years ago

Bismillah
In Surah Baqara verse no. 225 we read:

لَا يُؤَاخِذُكُمُ اللَّهُ بِاللَّغْوِ فِي أَيْمَانِكُمْ وَلَٰكِنْ يُؤَاخِذُكُمْ بِمَا كَسَبَتْ قُلُوبُكُمْ ۗ وَاللَّهُ غَفُورٌ حَلِيمٌ

Allah will not take you to task for what is unconsidered in your oaths, but He will take you to task for what your hearts have incurred, and Allah is all-forgiving, all-forbearing.

So as it is apparent from your question, you have no real intention of swearing by God's name and it's just on your tongue, so there's no need to pay Kaffarah for that.
Of course it is better to try hard to quit this habit

167211

Sayyed Mohammad Al-Musawi, Sayyed Mohammad al-Musawi is originally from Iraq and heads up the World Ahlul Bayt Islamic League in London. Other than being involved in various humanitarian projects, he frequently responds to... Answered 2 years ago

The verse 89 in Sura maidah does not permit deliberate lying. [Allah will not impose blame upon you for what is meaningless in your oaths,but he Will impose blame upon you for breaking what you intended of oaths.].

wasalam.

111318

Sayyed Mohammad Al-Musawi, Sayyed Mohammad al-Musawi is originally from Iraq and heads up the World Ahlul Bayt Islamic League in London. Other than being involved in various humanitarian projects, he frequently responds to... Answered 4 years ago

You should feed ten poor persons or give them clothes. If you can not afford that, then you must fast three day. It is called Kaffara al-Yameen.

'Wassalam.

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Sayyed Mohammad Al-Musawi, Sayyed Mohammad al-Musawi is originally from Iraq and heads up the World Ahlul Bayt Islamic League in London. Other than being involved in various humanitarian projects, he frequently responds to... Answered 6 years ago

The Qasam which is obligatory to fulfill is when you take the name of Allah in it. If you did not take the name of Allah, then such Qasam is not obligatory and no Kaffara  on you if you do not fulfill it.

Wassalam.

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Sayyed Mohammad Al-Musawi, Sayyed Mohammad al-Musawi is originally from Iraq and heads up the World Ahlul Bayt Islamic League in London. Other than being involved in various humanitarian projects, he frequently responds to... Answered 6 years ago

It is obligatory to fulfill the promise to Allah, and if you did not fulfill it, you will be committing a sinful act and there is a Kaffara on you which is either, freeing a slave, or feeding sixty poor persons or fasting two months.

We are not allowed to change our mind after promising Allah.

The Promise should be pronounced verbally and not just in your heart.

Wassalam.