Imaam Muhammad Ibn Saaleh al-Uthaymeen (rahimahullaah) said:

Indeed, defeat of the Muslims occurred due to one act of disobedience (i.e. during the battle of Uhud). And at present we want victory whilst disobedience is plenty amongst us. And due to this it is not possible for us to rejoice with victory as long as we are upon this state of affairs, unless Allaah shows us kindness and rectify all of us.

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