Muaz bin Anas reported,

The Prophet ﷺ was approached by a woman who said, "Messenger of Allah, my husband has gone out as a fighter, and I used to follow his example in prayer whenever he prayed and in everything he did. So tell me of a deed by which I can match his deeds until he returns."He said to her, "Can you stand without sitting, fast without breaking your fast, and remember Allah without ceasing until he returns?"She replied, "I cannot manage that, Messenger of Allah."He said, "By the One in whose hand my soul rests, even if you were able to do it, you would not reach a tenth of his deeds until he returns."

حدثنا يحيى بن غيلان حدثنا رشدين عن زبان

عن سهل عن أبيه

عن النبي ﷺ أن امرأة أتته فقالت يا رسول الله انطلق زوجي غازيا وكنت أقتدي بصلاته إذا صلى وبفعله كله فأخبرني بعمل يبلغني عمله حتى يرجع فقال لها أتستطيعين أن تقومي ولا تقعدي وتصومي ولا تفطري وتذكري الله تبارك وتعالى ولا تفتري حتى يرجع قالت ما أطيق هذا يا رسول الله فقال والذي نفسي بيده لو طوقتيه ما بلغت العشر من عمله حتى يرجع