وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ زِيَادِ بْنِ أَبِي زِيَادٍ، عَنْ طَلْحَةَ بْنِ عُبَيْدِ اللَّهِ بْنِ كَرِيزٍ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " أَفْضَلُ الدُّعَاءِ دُعَاءُ يَوْمِ عَرَفَةَ وَأَفْضَلُ مَا قُلْتُ أَنَا وَالنَّبِيُّونَ مِنْ قَبْلِي لاَ إِلَهَ إِلاَّ اللَّهُ وَحْدَهُ لاَ شَرِيكَ لَهُ " .
Yahya related to me from Malik from Ziyad ibn Abi Ziyad fromTalha ibn Ubaydullah ibn Kariz that the Messenger of Allah, may Allahbless him and grant him peace, said, "The best dua is dua on the dayof Arafa, and the best thing that I or the Prophets before me havesaid is 'There is no god but Allah, alone, without any partner' (Lailaha illa'llah, wahdahu la sharika lah.)" Translation Not Available
Book Ref: Muwatta Imam Malik Book 15 Hadith 504
Web Ref: Muwatta Imam Malik Book 15 Hadith 32