[Machine] Umar ibn al-Khattab used to say the takbeer (proclaiming the greatness of Allah) from the time of Fajr prayer on the day of Arafah until the Dhuhr prayer on the last days of Tashreeq.
كَانَ عُمَرُ بْنُ الْخَطَّابِ «يُكَبِّرُ بَعْدَ صَلَاةِ الْفَجْرِ مِنْ يَوْمِ عَرَفَةَ إِلَى صَلَاةِ الظُّهْرِ مِنْ آخِرِ أَيَّامِ التَّشْرِيقِ»