Ma'tmar bin Sulaiman-al-Taufayl معتمر بن سليمان - الطفيل · Chapters on Tafsir

from his father who said: "I did not remain behind from any of the battles the Prophet (ﷺ) fought in, until the battle of Tabuk, except for Badr. And the Prophet (ﷺ) did not scold anyone who remained behind from Badr, because he only went out to look for the caravan. The Quraish came out to help their caravan, so they met without an appointment as Allah the Mighty and Sublime, said. By my life, people consider the most honorable…

the Messenger of Allah said: “Verily, when the slave (of Allah) commits a sin, a black spot appears on his heart. When he refrains from it, seeks forgiveness and repents, his heart is polished clean. But if he returns, it increases until it covers his entire heart. And that is the ‘Ran’ which Allah mentioned: ‘Nay, but on their hearts is the Ran which they used to earn.’”