Sunan Abu Dawood 769
Malik said:
There is no harm in uttering supplication in prayer, in its beginning, in its middle, and in the end, in obligatory prayer or other.
حَدَّثَنَا الْقَعْنَبِيُّ، عَنْ مَالِكٍ، قَالَ لاَ بَأْسَ بِالدُّعَاءِ فِي الصَّلاَةِ فِي أَوَّلِهِ وَأَوْسَطِهِ وَفِي آخِرِهِ فِي الْفَرِيضَةِ وَغَيْرِهَا .
Classification
Sahih (Authentic)Maqtu` (Severed)
References
Sunan Abu Dawood 769
Sunan Abu Dawood Vol. 1, Book of Prayer (Kitab Al-Salat), Hadith 768