Abdur Rahman bin Abi Laila narrates: Sayyiduna Ka'b bin Ujrah (may Allah be pleased with him) said to me: Shall I not give you a gift? We said: Yes. He said: I asked: O Messenger of Allah (peace and blessings be upon him)! We have come to know how to send peace upon you, so how should we send blessings upon you? The Prophet (peace and blessings be upon him) said: Say: "O Allah, send blessings upon Muhammad (peace and blessings be upon him) and upon the family of Muhammad (peace and blessings be upon him), as You sent blessings upon the family of Ibrahim (peace be upon him). Surely, You are Praiseworthy, Glorious. O Allah, send blessings upon Muhammad (peace and blessings be upon him) and upon the family of Muhammad (peace and blessings be upon him), as You sent blessings upon the family of Ibrahim (peace be upon him). Surely, You are Praiseworthy, Glorious."
Hadith Referenceصحیح ابن حبان / كتاب الصلاة / 1964
Hadith Gradingفضيلة الشيخ الإمام محمد ناصر الدين الألبانيصحيح: ق - انظر (1954). تنبيه!! رقم (1954) = (1957) من «طبعة المؤسسة». - مدخل بيانات الشاملة -.فضيلة الشيخ العلّامة شُعيب الأرناؤوطإسناده صحيح على شرط البخاري، يوسف بن موسى: من رجال البخاري، ومن فوقه من رجال الشيخين.