Sayyiduna Abu al-Darda' (may Allah be pleased with him) narrates: The Prophet (peace and blessings be upon him) said: "Whoever sends blessings upon me ten times in the morning and ten times in the evening will attain my intercession on the Day of Resurrection."
Al-Tabarani recorded it with two chains; one of the two chains is jayyid (good), and its narrators have been declared trustworthy.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الأذكار / 17022