Seeking Knowledge to Revive Islam
Ibn Al-Qayyim, may Allāh have mercy on him, said:
Whoever seeks [Islamic] knowledge to revive Islam thereby is from among the ṣiddīqīn,¹ his rank directly below the rank of Prophethood.
¹the most-truthful, closest followers of the prophets and the highest in level with Allāh after them (TR)
Source: Ibn Al-Qayyim. Miftāḥ Dār Al-Saʿādah. ʿĀlam Al-Fawāʾid, p. 338.

