Sahih Muslim
Sahih Muslim 1016 a
Encouragement to give charity even if it is with half a date or a kind word. And charity is a shield against the fire.
Arabic hadith text
حَدَّثَنَا عَوْنُ بْنُ سَلاَّمٍ الْكُوفِيُّ، حَدَّثَنَا زُهَيْرُ بْنُ مُعَاوِيَةَ الْجُعْفِيُّ، عَنْ أَبِي إِسْحَاقَ، عَنْ عَبْدِ اللَّهِ بْنِ مَعْقِلٍ، عَنْ عَدِيِّ بْنِ حَاتِمٍ، قَالَ سَمِعْتُ النَّبِيَّ صلى الله عليه وسلم يَقُولُ "مَنِ اسْتَطَاعَ مِنْكُمْ أَنْ يَسْتَتِرَ مِنَ النَّارِ وَلَوْ بِشِقِّ تَمْرَةٍ فَلْيَفْعَلْ "
Translation
'Adi b. Hatim reported that he heard Allah's Messenger (way peace be upon him) as saying
He who among you can protect himself against Fire, he should do so, even if it should be with half a date.