Imam Ali (AS) said:

Swear to Allah (SWT), if I am given the seven continents of the world with all the things under the skies in order to disobey God and unjustifiably take away the skin of a barleycorn from an ant; I will not do so! And indeed, this impure world of yours to me is lower than the chewed leaf from the mouth of a locust! What has Ali got to do with perishable favours and impermanent enjoyments [1]?

[1] Nahjul Balaghah, Sermon 224.

Source: en.shafaqna.com