'Abdullah ibn as-Samit said, "I questioned my close friend Abu Dharr who said, 'I brought some water for wudu' to the Prophet, (ﷺ). He shook his head and bit his lip. I said, "May my father and mother be your ransom, have I injured you?" "No," he replied, "but you will meet amirs ? or imams ? who will delay the prayer until it is past its time." "So what do you command me to do?" I asked. He replied, "Pray the prayer at the proper time. If you come across them, then pray with them and do not say, 'I have already prayed, so I will not pray again.'"'"

حَدَّثَنَا مُوسَى، قَالَ‏:‏ حَدَّثَنَا وُهَيْبٌ، قَالَ‏:‏ حَدَّثَنَا أَيُّوبُ، عَنْ أَبِي الْعَالِيَةِ قَالَ‏:‏ سَأَلْتُ عَبْدَ اللهِ بْنَ الصَّامِتِ قَالَ‏:‏ سَأَلْتُ خَلِيلِي أَبَا ذَرٍّ، فَقَالَ‏:‏ أَتَيْتُ النَّبِيَّ صلى الله عليه وسلم بِوَضُوءٍ، فَحَرَّكَ رَأْسَهُ، وَعَضَّ عَلَى شَفَتَيْهِ، قُلْتُ بِأَبِي أَنْتَ وَأُمِّي آذَيْتُكَ‏؟‏ قَالَ‏:‏ لاَ، وَلَكِنَّكَ تُدْرِكُ أُمَرَاءَ أَوْ أَئِمَّةً يُؤَخِّرُونَ الصَّلاَةَ لِوَقْتِهَا، قُلْتُ‏:‏ فَمَا تَأْمُرُنِي‏؟‏ قَالَ‏:‏ صَلِّ الصَّلاَةَ لِوَقْتِهَا، فَإِنْ أَدْرَكْتَ مَعَهُمْ فَصَلِّهِ، وَلاَ تَقُولَنَّ‏:‏ صَلَّيْتُ، فَلاَ أُصَلِّي‏.‏