Musnad Ahmad 161:0

It was narrated from ‘Abdullah ibn Rawahah that he said: The Messenger of Allah (ﷺ) said: "Whoever says 'There is no god but Allah' sincerely, he will enter Paradise; and whoever fasts a day seeking the Face of Allah, and it is the last of his deeds, he will enter Paradise; and whoever gives charity and it is the last of his deeds, he will enter Paradise."