صحيح ابن خزيمه
Sahih Ibn Khuzaymah
جماع أبواب ذكر أفعال اختلف الناس فى إباحته للمحرم، نصت سنة النبى صلى الله عليه وسلم أو دلت على إباحتهاChapters on Acts Permitted for the Pilgrim by Sunnah
(204) بَابُ ذِكْرِ الْخَبَرِ الْمُفَسِّرِ لِلَّفْظَةِ الْمُجْمَلَةِ الَّتِي ذَكَرْتُ أَنَّ لَفْظَهَا عَامٌّ مُرَادُهَا خَاصٌّ،Chapter: Clarification of the general term regarding sa‘i between Safa and Marwa
Hadith 2761
Imam Abu Bakr, may Allah have mercy on him, says that in the narration of Sayyiduna Jabir, may Allah be pleased with him, which I have mentioned earlier, it is stated: When the Prophet's feet reached the lower part of the valley, he started running, and then when he began to ascend, he walked at a normal pace.
