Al-Husayn ibn Sa'id narrated from Fadala, from Aban ibn Uthman, from Bukayr ibn A'yan, who said: I said to Imam عليه السلام: "A man doubts (his ablution) after performing ablution." Imam عليه السلام said: "He is more mindful at the time of performing ablution than when he later doubts (his ablution)."