Continuation of the explanation of the hadith: Salim, the freed slave of Abu Hudhayfah, used to lead the first group of emigrants and the Companions of the Prophet (peace and blessings be upon him) in the mosque of Quba, among them were Abu Bakr
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The Shaykh : In any case, has the difficulty been resolved for you or not? We say that if it is preserved, meaning if he is counted among these people, it is possible that he went to Quba one day and Salim continued to pray with them, so he prayed behind him.