[Machine] The Messenger of Allah ﷺ said, "Whoever performs an extra voluntary deed and then becomes uncertain, if he wishes he can replace it and if he wishes he can leave it. But if it was a vow, then he must replace it."  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ «مَنْ أَهْدَى تَطَوُّعًا ثُمَّ ضَلَّتْ فَإِنْ شَاءَ أَبْدَلَهَا وَإِنْ شَاءَ تَرَكَ وَإِنْ كَانَتْ فِي نَذْرٍ فَلْيُبَدِّلْ»  

[Machine] From the Messenger of Allah ﷺ who said, "Whoever performs voluntary prayers and then becomes lost (confused), he may choose (to continue) or he may leave them. And if it (the confusion) is due to a vow, then he should fulfill it (by continuing the prayers). Al-Qarqasani narrated it from Al-Awza'i, and it contradicted the consensus in its wording."  

عَنْ رَسُولِ اللهِ ﷺ قَالَ مَنْ أَهْدَى تَطَوُّعًا ثُمَّ ضَلَّتْ فَإِنْ شَاءَ أَبْدَلَهَا وَإِنْ شَاءَ تَرَكَ وَإِنْ كَانَتْ فِي نَذْرٍ فَلْيُبَدِّلْ وَرَوَاهُ الْقَرْقَسَانِيُّ عَنِ الْأَوْزَاعِيِّ فَخَالَفَ الْجَمَاعَةَ فِي مَتْنِهِ