Imam Ali (AS) said, ‘Look carefully at what [attire] you pray in. If it is not among that which is fitting or permissible for it, then it is not accepted.
الإمامُ عليٌّ (عَلَيهِ الّسَلامُ): اُنظُرْ فِيمَ تُصَلِّي، إن لَم يَكُن مِن وَجهِهِ وحِلِّهِ فلا قَبولَ.