´Jabir narrated:` "When the Prophet arrived in Makkah, he performed seven (circuits) of Tawaf around the House. Then he came to the Maqam and said: And take you (people) the Maqam (place) of Ibrahim as a place of prayer. Then he prayed behind the Maqam. Then he came to the (Black) Stone to touch it. Then he said: 'We begin with what Allah began with.' So he began at As-Safa and recited: Indeed As-Safa and Al-Marwah are among the Symbols of Allah."
Hadith Referenceسنن ترمذي / كتاب الحج عن رسول الله صلى الله عليه وسلم / 862
´It was narrated that Jabir said:` "When he went tout the Masjid heading for As-Safa, I heard the Messenger of Allah say: We will start with that with which Allah started.'"
Hafiz Muhammad Ameen
At that time, Safa and Marwah were outside the mosque. Nowadays, they have come within the boundaries of the mosque, and in fact, quite far inside. (For further details, see Hadith: 2964)
Source: Sunan Nasa'i: Translation and Benefits by Shaykh Hafiz Muhammad Amin Hafizullah, Page: 2972
´Jabir said:` "Messenger of Allah went out to As-Safa and said.We will start with that with which Allah started. Then he recited: 'Verifly, as-Safa and Al-Marwah (two Mountains in Makkah) are of the symbols of Allah.'"
Hafiz Muhammad Ameen
English translation:
The commencement of Sa’i from Safa is a unanimously agreed upon issue. There is no difference of opinion in this matter.
Source: Sunan Nasa'i: Translation and Benefits by Shaykh Hafiz Muhammad Amin Hafizullah, Page: 2973