Sayyiduna Ibn Abbas (may Allah be pleased with them both) states: I heard Sayyiduna Umar bin al-Khattab (may Allah be pleased with him) saying: "If I were to perform Umrah again and again and then intend Hajj, I would choose Hajj al-Tamattu'."
According to the Imams and commentators, this report makes clear that in the view of Sayyiduna Umar al-Faruq (may Allah be pleased with him), among the types of Hajj, Hajj al-Tamattu' (in which ihram is removed after performing Umrah in the months of Hajj, and then Hajj is performed on the same journey) was a preferred and superior practice, and his own inclination was towards this form of worship which the Messenger of Allah (peace and blessings be upon him) had taught his Companions.
Hadith Referenceالمطالب العالية بزوائد المسانيد الثمانية / كتاب الحج / 1180
Hadith Gradingمحدثین:إسناده صحيح
Hadith Takhrij«حکم الحدیث المطالب العالیہ محققاً تنسیق د. سعد بن ناصر بن عبد العزيز الشَّثري- مکتبہ شاملہ :سنده صحيح. » «أخرجه مصنف ابن أبي شيبة برقم: 13881»