Abu Hurairah, may Allah be pleased with them, said that: Allah's Messenger (ﷺ) said: "They said: 'O Messenger of Allah, whom should I treat kindly?' He said: 'Your mother.' He said: 'Then who?' He said :'Your mother." He said: 'Then who?' He said: 'Your father'. He said : 'Then who?' He said: 'The next closest and the next closest.'"
Source: sunnah.com
Other translations
Arabic
حَدَّثَنَا أَبُو بَكْرٍ، مُحَمَّدُ بْنُ مَيْمُونٍ الْمَكِّيُّ حَدَّثَنَا سُفْيَانُ بْنُ عُيَيْنَةَ، عَنْ عُمَارَةَ بْنِ الْقَعْقَاعِ، عَنْ أَبِي زُرْعَةَ، عَنْ أَبِي هُرَيْرَةَ، قَالَ قَالُوا يَا رَسُولَ اللَّهِ مَنْ أَبَرُّ قَالَ " أُمَّكَ " . قَالَ ثُمَّ مَنْ قَالَ " أُمَّكَ " . قَالَ ثُمَّ مَنْ قَالَ " أَبَاكَ " . قَالَ ثُمَّ مَنْ قَالَ " الأَدْنَى فَالأَدْنَى " .
sunnah.com