Sa'i between Safa and Marwah is one of the essential rites of both Hajj and Umrah, and scholars agree that it should be preceded by Tawaf. The question of whether Sa'i must immediately follow Tawaf or may be delayed is a practical concern for many pilgrims, especially those who are elderly, ill, or overwhelmed by crowds. The general scholarly consensus is that performing Sa'i immediately after Tawaf is the Sunnah and preferred practice, as this is what the Prophet Muhammad (peace be upon him) consistently did. However, the schools differ on whether this immediate succession (muwalat) is obligatory or merely recommended.
The Hanafi, Shafi'i, and Hanbali schools all hold that while performing Sa'i immediately after Tawaf is strongly recommended, delaying it for a valid reason (such as fatigue, illness, prayer time, or extreme heat) is permissible and does not affect the validity of the Sa'i. Even delaying until the following day is allowed in these schools, provided the Sa'i is still performed. The Shafi'i school notes that an unreasonable delay without excuse, while valid, is makruh (disliked). The Hanbali school similarly permits delay but emphasizes that the pilgrim should not leave Makkah without completing Sa'i.
The Maliki school takes the strictest position on this matter. Imam Malik held that the immediate succession (muwalat) between Tawaf and Sa'i is a condition of validity. If the pilgrim delays Sa'i for an unreasonable amount of time without a valid excuse, the Sa'i is invalidated and must be repeated preceded by a new Tawaf. However, a short delay for prayer, rest, eating, or drinking is excused and does not break the continuity. The definition of 'unreasonable delay' in the Maliki school is generally understood as a gap long enough that the two acts are no longer considered connected in customary terms.