The Sunnah is to perform the tawaf first, then the sa'y
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Question: Is it permissible to perform the sa'y before the tawaf, whether in Hajj or 'Umrah?
Answer: The Sunnah is to perform the tawaf first, then the sa'y afterwards. If one performs the sa'y before the tawaf out of ignorance, there is no blame on him. It is established that a man asked him (peace and blessings be upon him), saying: "I performed the sa'y before I performed the tawaf." He said: This indicates that if one performs the sa'y first, it suffices for him. However, the Sunnah is to perform the tawaf and then the sa'y. This is the Sunnah in both 'Umrah and Hajj.
Answer: The Sunnah is to perform the tawaf first, then the sa'y afterwards. If one performs the sa'y before the tawaf out of ignorance, there is no blame on him. It is established that a man asked him (peace and blessings be upon him), saying: "I performed the sa'y before I performed the tawaf." He said:
There is no harm.
لا حرج
Source
binbaz.org.sa
The Arabic text is copied verbatim from the original source, without any edits.