It is narrated from Hazrat Abu Musa (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) sent me to the area of my people. When the season of Hajj approached, the Noble Prophet (peace and blessings be upon him) set out for Hajj, and I also attained the honor of performing Hajj. When I presented myself before him, the Noble Prophet (peace and blessings be upon him) was encamped at Abtah. He asked me, "O Abdullah bin Qais! With what intention did you put on Ihram?" I replied, "Labbaik for Hajj, with the same intention as the Prophet (peace and blessings be upon him)." The Noble Prophet (peace and blessings be upon him) said, "Very good. Tell me, did you bring a sacrificial animal with you?" I said, "No." The Noble Prophet (peace and blessings be upon him) said, "Go and perform Tawaf of the House of Allah, perform Sa'i between Safa and Marwah, and come out of Ihram." So I went and did as the Noble Prophet (peace and blessings be upon him) commanded. Then I went to a woman of my people, and she washed my head with 'khatmi' and looked for lice in my hair. Then, on the eighth of Dhul-Hijjah, I put on Ihram for Hajj. I continued to give people the same fatwa until the passing of the Noble Prophet (peace and blessings be upon him), as he had commanded me. The same situation remained during the time of Hazrat Abu Bakr (may Allah be pleased with him). When the time of Hazrat Umar (may Allah be pleased with him) came, one day I was standing near the Black Stone and telling people the same ruling that the Noble Prophet (peace and blessings be upon him) had commanded me, when suddenly a man came and whispered to me, "Do not be hasty in giving this fatwa, because the Commander of the Faithful has issued some new rulings regarding the rites of Hajj." I said to the people, "O people! Whoever has received a fatwa from us regarding the rites of Hajj should wait, for the Commander of the Faithful is coming; follow him." Then when Hazrat Umar (may Allah be pleased with him) arrived, I asked him, "O Commander of the Faithful! Have you issued any new rulings regarding the rites of Hajj?" He replied, "Yes! If we take the Book of Allah, it commands us to complete (the rites), and if we take the Sunnah of the Noble Prophet (peace and blessings be upon him), he did not come out of Ihram until he had offered the sacrifice."