Musnad Ahmad

It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that the custom of women wearing a waistband was first transferred from the mother of Hazrat Ismail (peace be upon him); she used to tie a waistband in front of Hazrat Sarah (may Allah be pleased with her) to erase her traces. Then the narrator mentioned the complete hadith. Sayyiduna Ibn Abbas (may Allah be pleased with them both) further said: May Allah's mercy descend upon the mother of Ismail (peace be upon him); if she had left Zamzam as it was, it would have become a flowing spring. He says that the Prophet (peace and blessings of Allah be upon him) said: "This situation happened with the mother of Ismail; she loved people, so the caravan people camped there and called their other family members as well, and they started living with them . . . . ." Then the narrator also said that when the mother of Ismail (peace be upon him) descended from Safa and reached the low-lying area, she lifted the hem of her shirt and began to run quickly like a person in distress, and after crossing that low area, she reached Marwah and stood there looking to see if any human could be seen or not. But she did not see anyone. She circled in this way seven times, and this is the beginning of Sa'i.