The Prophet ﷺ said, "Nothing is more honorable to Allah Almighty than supplication."
حدثنا عباس بن عبد العظيم العنبري وغير واحد قالوا حدثنا أبو داود الطيالسي حدثنا عمران القطان عن قتادة عن سعيد بن أبي الحسن
عن النبي ﷺ قال ليس شيء أكرم على الله تعالى من الدعاء
Its isnad is daif. Ibn Majah also narrated it in the Book of Supplication, Chapter on the Excellence of Supplication, no. 3829, from the hadith of Abu Dawud Tayalisi with this wording, and it is found in his Musnad, no. 2582. Ibn Hibban graded it sahih, no. 2397, as did Hakim, 1/490, and Dhahabi agreed with him. Qatada used the vague form "ана" (an) in his transmission.