Musnad Abi Ya'la 2197 — the Prophet ﷺ passed by a group who were

It is narrated from Sayyiduna Jabir (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) passed by a group who were reciting the Qur'an in the mosque, and he (peace and blessings be upon him) said: "Recite the Qur'an before there come a people who will make it straight like an arrow (in the outward correctness of its letters); they will seek to obtain (a worldly reward) for it quickly and will not defer it (for the reward of the Hereafter)."