Al-Matalib al-'Aliyah 972 — The best charity

It is narrated from Sayyiduna Hudhayfah (may Allah be pleased with him) that he said: I had the Prophet (peace and blessings be upon him) leaning against my chest (that is, he (peace and blessings be upon him) was resting against my chest for support), when he (peace and blessings be upon him) said: "Whoever gives charity seeking the pleasure and good pleasure of Allah Almighty, and his life is sealed with that good deed, enters Paradise."
The imams of hadith say in explaining this blessed saying that it refers to that great virtue of a good end (husn al-khatimah) in which a person is granted, at his final moment, the ability to do a good deed purely for the pleasure of Allah; such a deed then becomes for him a warrant of forgiveness and entry into Paradise.