قَالَ يَحْيَى : وَسُئِلَ مَالِك ، عَنِ الدُّعَاءِ فِي الصَّلَاةِ الْمَكْتُوبَةِ ، فَقَالَ : لَا بَأْسَ بِالدُّعَاءِ فِيهَا
Imam Malik, may Allah have mercy on him, was asked about supplicating during obligatory prayer. He said: There is no harm in it.