Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
nasai:499 – ʿUbaydullāh b. Saʿīd > Abū Saʿīd a freed slave of Banī Hāshim > Khālid b. Dīnār Abū Khaldah > Anas b. Mālik

"I heard Anas bin Malik say: 'When it was hot, the Messenger of Allah ﷺ would wait until it cooled down to pray, and when it was cold he would hasten to pray.'"  

النسائي:٤٩٩ – أَخْبَرَنَا عُبَيْدُ اللَّهِ بْنُ سَعِيدٍ قَالَ حَدَّثَنَا أَبُو سَعِيدٍ مَوْلَى بَنِي هَاشِمٍ قَالَ حَدَّثَنَا خَالِدُ بْنُ دِينَارٍ أَبُو خَلْدَةَ قَالَ سَمِعْتُ أَنَسَ بْنَ مَالِكٍ قَالَ

كَانَ رَسُولُ اللَّهِ ﷺ إِذَا كَانَ الْحَرُّ أَبْرَدَ بِالصَّلاَةِ وَإِذَا كَانَ الْبَرْدُ عَجَّلَ  

See similar narrations below:

Collected by Nasāʾī's Kubrá
nasai-kubra:1497 – ʿUbaydullāh b. Saʿīd > Abū Saʿīd a freed slave of Banī Hāshim > Khālid b. Dīnār Abū Khaldah > Anas b. Mālik

"I heard Anas bin Malik say: 'When it was hot, the Messenger of Allah ﷺ would wait until it cooled down to pray, and when it was cold he would hasten to pray.'" (Using translation from Nasāʾī 499)  

الكبرى للنسائي:١٤٩٧ – أَخْبَرَنَا عُبَيْدُ اللهِ بْنُ سَعِيدٍ قَالَ حَدَّثَنَا أَبُو سَعِيدٍ مَوْلَى بَنِي هَاشِمٍ قَالَ حَدَّثَنَا خَالِدُ بْنُ دِينَارٍ أَبُو خَلْدَةَ قَالَ سَمِعْتُ أَنَسَ بْنَ مَالِكٍ قَالَ

كَانَ رَسُولُ اللهِ ﷺ «إِذَا كَانَ الْحَرُّ أَبْرَدَ بِالصَّلَاةِ وَإِذَا كَانَ الْبَرْدُ عَجَّلَ»