佛祖統紀 33.12

33.12

供燈　佛告舍利弗。有人於塔廟形像奉施燈明。乃至以少燈炬。如此福德唯佛能知（施燈經）。

Offering Lamps: The Buddha told Śāriputra: 'If someone offers and donates lamp illumination to stūpas, shrines, and images, even with a small lamp or torch, only a Buddha can know the merit of this' (from the *Sūtra on Bestowing Lamps*).