Isma'il bin Ubaydullah narrates: Abd al-Malik bin Marwan said to me: "O Isma'il! Educate my children and I will pay you." He said: "How can that be, when Sayyidah Umm al-Darda' (may Allah be pleased with her) narrated this hadith to me from Sayyiduna Abu al-Darda' (may Allah be pleased with him)?" The Prophet (peace and blessings be upon him) said: "Whoever takes a bow in return for teaching the Qur'an, Allah Almighty will hang a bow made of fire around his neck."
Al-Tabarani recorded it in al-Mu'jam al-Kabir by way of Yahya bin Abd al-Aziz from al-Walid bin Muslim; I have not found anyone who has written about him, nor is he among the weak narrators, and the rest of its narrators are the narrators of the Sahih.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب البيوع / 6447