It is narrated from Ata (may Allah have mercy on him) that he said: "When the Messenger of Allah (ﷺ) sent Abu Bakr (may Allah be pleased with him) for Hajj, he performed Sa'i, then during his own caliphate Abu Bakr (may Allah be pleased with him) also did so, then Umar (may Allah be pleased with him), then Uthman (may Allah be pleased with him), and the caliphs who came after them—all the caliphs after them used to perform Sa'i in the same manner."
Hadith Referenceمسند الإمام الشافعي / كتاب الحج / 980
Hadith Takhrijإسناده ضعيف لإرساله: أخرجه أبو داود في المراسيل (142) والبيهقي: 5 / 83 - وابن أبي شيبة (13529)۔