The Prophet ﷺ said: A man's prayer does not avail him unless he keeps his back steady when bowing and prostrating.
قَالَ رَسُولُ اللَّهِ ﷺ لاَ تُجْزِئُ صَلاَةُ الرَّجُلِ حَتَّى يُقِيمَ ظَهْرَهُ فِي الرُّكُوعِ وَالسُّجُودِ
See similar narrations below:
Collected by Nasāʾī, Ibn Mājah, Aḥmad, Dārimī, Ibn Ḥibbān, Ṭabarānī, Nasāʾī's Kubrá, Bayhaqī, Suyūṭī"The Messenger of Allah ﷺ said: 'No prayer is valid in which a man does not maintain his back (at ease) when bowing and prostrating.'"
قَالَ رَسُولُ اللَّهِ ﷺ لاَ تُجْزِئُ صَلاَةٌ لاَ يُقِيمُ الرَّجُلُ فِيهَا صُلْبَهُ فِي الرُّكُوعِ وَالسُّجُودِ
"The Messenger of Allah ﷺ said: 'The prayer is not valid if a man does not bring his backbone to rest while bowing and prostrating.'"
قَالَ رَسُولُ اللَّهِ ﷺ لاَ تُجْزِئُ صَلاَةٌ لاَ يُقِيمُ الرَّجُلُ فِيهَا صُلْبَهُ فِي الرُّكُوعِ وَالسُّجُودِ
“The Messenger of Allah ﷺ said: ‘No prayer is acceptable in which a man does not settle his spine when bowing and when prostrating.’”
قَالَ رَسُولُ اللَّهِ ﷺ لاَ تُجْزِئُ صَلاَةٌ لاَ يُقِيمُ الرَّجُلُ فِيهَا صُلْبَهُ فِي الرُّكُوعِ وَالسُّجُودِ
The Prophet ﷺ said: A man's prayer does not avail him unless he keeps his back steady when bowing and prostrating. (Using translation from Abū Dāʾūd 855)
قَالَ رَسُولُ اللهِ ﷺ لَا تُجْزِئُ صَلَاةٌ لِأَحَدٍ لَا يُقِيمُ فِيهَا ظَهْرَهُ فِي الرُّكُوعِ وَالسُّجُودِ
[Machine] The Prophet ﷺ said, "The prayer of a man or anyone who does not straighten his back during bowing and prostration is not accepted."
عَنِ النَّبِيِّ ﷺ قَالَ لَا تُجْزِئُ صَلَاة الرجل أَوْ أَحَدٍ لَا يُقِيمُ ظَهْرَهُ فِي الرُّكُوعِ وَالسُّجُودِ
“The Messenger of Allah ﷺ said: ‘No prayer is acceptable in which a man does not settle his spine when bowing and when prostrating.’” (Using translation from Ibn Mājah 870)
قَالَ رَسُولُ اللَّهِ ﷺ «لَا تُجْزِئُ صَلَاةٌ لَا يُقِيمُ الرَّجُلُ فِيهَا صُلْبَهُ فِي الرُّكُوعِ وَالسُّجُودِ»
“The Messenger of Allah ﷺ said: ‘No prayer is acceptable in which a man does not settle his spine when bowing and when prostrating.’” (Using translation from Ibn Mājah 870)
قَالَ رَسُولُ اللَّهِ ﷺ «لَا تُجْزِئُ صَلَاةٌ لَا يُقِيمُ الرَّجُلُ فِيهَا صُلْبَهُ فِي الرُّكُوعِ وَالسُّجُودِ»
The Prophet ﷺ said: A man's prayer does not avail him unless he keeps his back steady when bowing and prostrating. (Using translation from Abū Dāʾūd 855)
قَالَ رَسُولُ اللَّهِ ﷺ «لَا تُجْزِئُ صَلَاةٌ لِأَحَدٍ لَا يُقِيمُ صُلْبَهُ فِي الرُّكُوعِ وَالسُّجُودِ»
“The Messenger of Allah ﷺ said: ‘No prayer is acceptable in which a man does not settle his spine when bowing and when prostrating.’” (Using translation from Ibn Mājah 870)
قَالَ رَسُولُ اللهِ ﷺ «لَا تُجْزِئُ صَلَاةٌ لَا يُقِيمُ الرَّجُلُ فِيهَا صُلْبَهُ فِي الرُّكُوعِ وَالسُّجُودِ»
[Machine] The Messenger of Allah ﷺ said, "The prayer of someone is not valid or it was said, 'The person does not properly straighten their back during the bowing and prostration.'"
قَالَ رَسُولُ اللهِ ﷺ لَا تُجْزِئُ صَلَاةُ أَحَدٍ أَوْ قَالَ الرَّجُلِ لَا يُقِيمُ ظَهْرَهُ فِي الرُّكُوعِ وَالسُّجُودِ
“The Messenger of Allah ﷺ said: ‘No prayer is acceptable in which a man does not settle his spine when bowing and when prostrating.’” (Using translation from Ibn Mājah 870)
قَالَ رَسُولُ اللهِ ﷺ «لَا تُجْزِئُ صَلَاةٌ لَا يُقِيمُ الرَّجُلُ فِيهَا صُلْبَهُ فِي الرُّكُوعِ وَالسُّجُودِ»
“The Messenger of Allah ﷺ said: ‘No prayer is acceptable in which a man does not settle his spine when bowing and when prostrating.’” (Using translation from Ibn Mājah 870)
قَالَ رَسُولُ اللهِ ﷺ «لَا تُجْزِئُ صَلَاةٌ لَا يُقِيمُ الرَّجُلُ فِيهَا صُلْبَهُ فِي الرُّكُوعِ وَالسُّجُودِ»
“The Messenger of Allah ﷺ said: ‘No prayer is acceptable in which a man does not settle his spine when bowing and when prostrating.’” (Using translation from Ibn Mājah 870)
قَالَ رَسُولُ اللهِ ﷺ «لَا تُجْزِئُ صَلَاةٌ لَا يُقِيمُ الرَّجُلُ فِيهَا صُلْبَهُ فِي الرُّكُوعِ وَالسُّجُودِ»
“The Messenger of Allah ﷺ said: ‘No prayer is acceptable in which a man does not settle his spine when bowing and when prostrating.’” (Using translation from Ibn Mājah 870)
النَّبِيَّ ﷺ قَالَ لَا تُجْزِي صَلَاةٌ لَا يُقِيمُ الرَّجُلُ فِيهَا صُلْبَهُ فِي الرُّكُوعِ وَالسُّجُودِ
Request/Fix translation
"لَا تُجْزِيءُ صَلاةُ الرَّجُلِ حَتَّى يُقِيمَ ظَهْرَهُ فِي الرُّكُوعِ وَالسُّجُودِ".