مِشْكَاةُ الْمَصَابِيحِ
Mishkat al-Masabih 2231
Supplications
Section 2
وَعَنْ أَنَسٍ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «الدُّعَاءُ مُخُّ الْعِبَادَةِ» . رَوَاهُ التِّرْمِذِيّ
Anas reported God’s messsenger as saying, “Supplication is the pith of worship.” Tirmidhi transmitted it.
Mishkat al-Masabih, 2231ضَعِيفٌ (الألباني)