It is narrated from Sayyiduna Abdullah bin Amr bin al-As (may Allah be pleased with them both) that he requested Sayyiduna Abu Dharr (may Allah be pleased with him): "O uncle, teach me something good." He replied: "Yes, my nephew. The Messenger of Allah (peace and blessings be upon him) said to me: 'O Abu Dharr, if you pray two rak'ahs of Duha, you will not be recorded among the heedless; if you pray four, you will be recorded among the muhsinin (those who do good); if you pray six, no sin will pursue you; if you pray ten (there is a gap in the text here); and if you pray twelve, a house will be built for you in Paradise in return for them.'"
Imam Abu Ya'la al-Mawsili narrated it in his Musnad.
Hadith Referenceالمطالب العالية بزوائد المسانيد الثمانية / كتاب النوافل / 654
Hadith Gradingمحدثین:إسناده حسن
Hadith Takhrij«حکم الحدیث المطالب العالیہ محققاً تنسیق د. سعد بن ناصر بن عبد العزيز الشَّثري- مکتبہ شاملہ :إسناده حسن لغيره. » «أخرجه البيهقي فى«سننه الكبير» برقم: 4984، والبزار فى «مسنده» برقم: 3890، وأورده ابن حجر فى "المطالب العالية"، 654»