question #3 Sahih Muslim 1016b, Book 12, Hadith 85 : What is the significance of small acts of charity or kindness in Islam, especially in the context of protecting oneself from punishment?

Allah will speak with everyone amongst you without any interpreter between them. He (the man) would see towards his right and would not find anything but (the deeds) which he had done before, and he would see towards the left and would not find anything but (the deeds) which he had done before. He would see in front of him and would find nothing but Fire just before his face. So protect (yourselves) against Fire even if it is with the help of half a date. A hadith like this has been transmitted by Khaithama and addition has been made in this of (these words) ;” Even if it is with a good word.”