(9) Supplications
كتاب الدعوات
(0) Section 2
(0) الفصل الثاني
Mishkat al-Masabih 2241 
He reported God’s messenger as saying, “Supplicate God when you are assured of being answered, and know that God does not answer a supplication which comes from a careless and inattentive heart.” Tirmidhi transmitted it, saying this is a gharib tradition.
وَعَنْهُ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «ادْعُوا اللَّهَ وَأَنْتُمْ مُوقِنُونَ بِالْإِجَابَةِ وَاعْلَمُوا أَنَّ اللَّهَ لَا يَسْتَجِيبُ دُعَاءً مِنْ قَلْبٍ غَافِلٍ لَاهٍ» . رَوَاهُ التِّرْمِذِيُّ وَقَالَ: هَذَا حديثٌ غَرِيب
 لم تتمّ دراسته  (الألباني)حكم :
Reference : Mishkat al-Masabih 2241
In-book reference : Book 9, Hadith 18