(2) باب المواقيت
Al-Bukhari reported that it was Umar, who specified Dhat 'Irq as the miqat (of those coming from Iraq). (ES)
Reference (ES): Bulugh al-Maram 725 (ES)
In-book reference (ES): Book 6, Hadith 18 (ES)
English translation (ES): Book 6, Hadith 744 (ES)