Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) narrates: We set out with the Prophet (peace and blessings of Allah be upon him) having donned the Ihram for Hajj. The Prophet (peace and blessings of Allah be upon him) reached (Makkah Mukarramah) on the fourth of Dhul-Hijjah. He performed the morning prayer in the valley of Batha. When he had completed the prayer, he said: Whoever wishes to make it an Umrah may do so.
Hadith Referenceصحیح ابن حبان / كتاب الحج / 3794
Hadith Gradingفضيلة الشيخ الإمام محمد ناصر الدين الألبانيصحيح: ق.فضيلة الشيخ العلّامة شُعيب الأرناؤوطإسناده صحيح على شرط مسلم