A man came to Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) and asked: What talbiyah did the Messenger of Allah (peace and blessings be upon him) call? Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) said: He called the talbiyah for Hajj only. Then he came the following year and asked him again: How did the Messenger of Allah (peace and blessings be upon him) call the talbiyah? He said: Did you not come last year? He said: Of course, but Sayyiduna Anas bin Malik (may Allah be pleased with him) holds that he performed Hajj al-Qiran. Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) said: Sayyiduna Anas bin Malik (may Allah be pleased with him) used to go in among the women while their heads were uncovered, whereas I was beneath the she-camel of the Messenger of Allah (peace and blessings be upon him), its saliva touching me, and I heard him calling the talbiyah for Hajj.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الحج / 8830