Full Sharh — Mishkat al-Masabih 915
وَعَنْهُ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «مَنْ صَلَّى الْفَجْرَ فِي جَمَاعَةٍ ثُمَّ قَعَدَ يَذْكُرُ اللَّهَ حَتَّى تَطْلُعَ الشَّمْسُ ثُمَّ صَلَّى رَكْعَتَيْنِ كَانَتْ لَهُ كَأَجْرِ حَجَّةٍ وَعُمْرَةٍ» . قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «تَامَّةٍ تَامَّةٍ تَامَّةٍ» . رَوَاهُ التِّرْمِذِيُّ
English Translation
He reported God’s Messenger as saying, “If anyone, prays the dawn prayer in a company, then sits making mention of God till the sun rises, then prays two rak'as, he will have a reward equivalent to that for a hajja* and an ‘umra.” He reported God’s Messenger as adding, “A perfect one, a perfect one, a perfect one.” * A pilgrimage to Mecca and neighbouring spots made at the proper season in Dhul Hijja. Tirmidhi transmitted it.
Source
Mishkat al-Masabih(مشكاة المصابيح)
Prayer
Hadith Number
915