عَنْ عِمْرَانَ بْنِ حُصَيْنٍ رَضِيَ اللَّهُ عَنْهُ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ سُئِلَ عَنِ الشَّفْعِ وَالْوَتْرِ فَقَالَ هِيَ الصَّلَاةُ بَعْضُهَا شَفْعٌ وَبَعْضُهَا وَتْرٌ
It is narrated from Sayyiduna Imran bin Husain (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him and his family) was asked about shaf‘ and witr, so he (peace and blessings be upon him and his family) said: By this is meant prayer; some prayers are even and some prayers are odd.