(20) باب الْحَثِّ عَلَى الصَّدَقَةِ وَلَوْ بِشِقِّ تَمْرَةٍ أَوْ كَلِمَةٍ طَيِّبَةٍ وَأَنَّهَا حِجَابٌ مِنْ النَّارِ
'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.
Reference: Sahih Muslim 1016 a
In-book reference: Book 12, Hadith 84
USC-MSA web (English) reference(deprecated numbering scheme): Book 5, Hadith 2215