كتاب الإمامة
10  
The Book of Leading the Prayer (Al-Imamah)
(60)
Chapter: The Disapproval of praying when the iqhmah is said
(60)
باب مَا يُكْرَهُ مِنَ الصَّلاَةِ عِنْدَ الإِقَامَةِ
Sunan an-Nasa'i 867
It was narrated that Ibn Buhainah said:
"The Iqamah for Subh prayer was said, and the Messenger of Allah (ﷺ) saw a man praying while the Mu'adhdhin saying the Iqamah. He said: 'Are you praying Subh with four Rak'ahs?"'
أَخْبَرَنَا قُتَيْبَةُ، قَالَ حَدَّثَنَا أَبُو عَوَانَةَ، عَنْ سَعْدِ بْنِ إِبْرَاهِيمَ، عَنْ حَفْصِ بْنِ عَاصِمٍ، عَنِ ابْنِ بُحَيْنَةَ، قَالَ أُقِيمَتْ صَلاَةُ الصُّبْحِ فَرَأَى رَسُولُ اللَّهِ صلى الله عليه وسلم رَجُلاً يُصَلِّي وَالْمُؤَذِّنُ يُقِيمُ فَقَالَ ‏ "‏ أَتُصَلِّي الصُّبْحَ أَرْبَعًا ‏"‏ ‏.‏
Grade: Sahih (Darussalam)
Reference : Sunan an-Nasa'i 867
In-book reference : Book 10, Hadith 91
English translation : Vol. 1, Book 10, Hadith 868