Musannaf Ibn Abi Shayba 28:359

Waki' narrated to us, he said: Sufyan narrated to us, from al-Shaybani, from Yasir ibn 'Amr, that Sa'd ibn Malik used to assign a stipend of two thousand [dirhams] to those who recited the Quran. This reached 'Umar, so he wrote to him: "Do not give a wage for the Quran."