مِشْكَاةُ الْمَصَابِيحِ
Mishkat al-Masabih 969
Prayer
Making Mention of God after the Prayer - Section 2
وَعَنْ عُقْبَةَ بْنِ عَامِرٍ قَالَ: أَمَرَنِي رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ أَنْ أَقْرَأَ بِالْمُعَوِّذَاتِ فِي دُبُرِ كُلِّ صَلَاةٍ. رَوَاهُ احْمَدُ وَأَبُو دَاوُدَ وَالنَّسَائِيُّ وَالْبَيْهَقِيُّ فِي الدَّعَوَاتِ الْكَبِيرِ
‘Uqba b. ‘Amir said that God’s Messenger ordered him to recite al-Mu'awwidhat* after every prayer. * Suras 113 and 114 are commonly called al-Mu'awwidhatan, this being the dual. Although al-Masabih has the dual, the Mishkat has the plural. In the notes to the Damascus edition it is suggested that suras 109 and 112 may be added, but it is more probable that the Mishkat has used the plural in error. Ahmad, Abu Dawud, Nasa’i and Baihaqi, in [Kitab] ad-da‘awat al-kabir, transmitted it.
Mishkat al-Masabih, 969صَحِيح (الألباني)