I prayed, but doubted after if i had wudhu

[Dar]

I did wudhu right before praying dhuhr. And then in the afternoon i prayed Asr, but right after Asr prayer i was not sure if i was still in a state of wudhu for Asr. do i have to repeat Asr prayer?

[Amna4]

I am not a scholar:

From what I've learned, if you performed salah while you had no doubts of being in a state of wudhu, then it is valid. If you remember later that you were NOT in a state of wudhu, you need to repeat Asr. But if it is just 'doubt', then it could be Shaytan's whispers.

In any case, this scenario is why it's best to always perform wudhu fresh for every prayer... then you can't have any doubts

[Shaykh Ul Islam]

“Certainty is not lifted by a doubt.” (Ibn Nujaym, al-Ashbah wa'l Nadha'ir, p. 60)

A doubt will not nullify Wudhu. One remembers that Wudhu was made, but cannot remember if the Wudhu was broken. In such a case of doubt the Wudhu will be considered valid.

http://books.themajlis.net/node/217

[abuhajira]

Heavenly Ornaments :
If one remembers making wudhu but is unsure as to whether the wudhu is still intact or broken, the wudhu will be regarded as not broken. Salât with that wudhu will be proper but it is preferable to repeat the wudhu (Factors that break or do not break wudhu, #30)

Wallahu A'lam,