Yes it is allowed according to authentic evidence from Quran and Hadeeth from the Prophet (SAWA) and Ahlul Bayt (AS) being studied and researched by Shia scholars.
Non Shia Muslims have little access to the most authentic Prophetic Hadeeths narrated by Ahlul Bayt (AS) , that is why many of them have misunderstood narrations and matters including this matter as well as Wudhu, temporary marriage, Divorce, daughters inheritance, photography etc.
Wassalam.