قال الله عز وجل يا أيها الذين آمنوا إذا قمتم إلى الصلاة الآية الدليل على أن هذا على بعض القائمين دون بعض.
Allah, the Mighty and Majestic, said: {يَاأَيُّهَاالَّذِينَآمَنُواإِذَاقُمْتُمْإِلَىالصَّلاةِ}, the verse. The evidence that this applies to some of those who stand and not to others:
Sayyiduna Buraidah (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) used to perform ablution for every prayer. On the day of the conquest of Makkah, when he performed ablution, he wiped over his leather socks and performed several prayers with a single ablution. Umar (may Allah be pleased with him) asked: O Messenger of Allah! Today you have done something which you never did before. He replied: Umar! I have done this deliberately.
This hadith is from Ishaq; Ibn Hashim did not mention the wiping over the leather socks.
Hadith Referenceالمنتقى ابن الجارود / كتاب الطهارة / 1
Hadith Gradingغلام مصطفےٰ ظهير امن پوري: صحيح مسلم