佛說安宅陀羅尼呪經 1.6

1.6

爾時佛告阿難：「汝當受持，讀誦通利，為他解說，書寫供養此陀羅尼呪。所以者何？佛出世難，持是呪亦復甚難。阿難！若有受持讀誦通利，得大福利。」

At that time the Buddha addressed Ānanda: "You must receive, keep, recite with fluency, explain to others, write down, and make offerings to this dhāraṇī spell. Why is this? It is difficult for a buddha to appear in the world, and holding this spell is likewise exceedingly difficult. Ānanda! If anyone receives, keeps, and recites it with fluency, they will attain great blessings and benefit."