Messenger of Allah ﷺ said, "Allah said, 'The son of Adam hurts me for he abuses Time though I am Time: in My Hands are all things, and I cause the revolution of day and night.'

قَالَ رَسُولُ اللَّهِ ﷺ قَالَ اللَّهُ ﷻ يُؤْذِينِي ابْنُ آدَمَ يَسُبُّ الدَّهْرَ وَأَنَا الدَّهْرُ بِيَدِي الأَمْرُ أُقَلِّبُ اللَّيْلَ وَالنَّهَارَ

Messenger of Allah ﷺ said, "They say Al-Karm (the generous), and in fact Al-Karm is the heart of a believer."

قَالَ رَسُولُ اللَّهِ ﷺ وَيَقُولُونَ الْكَرْمُ إِنَّمَا الْكَرْمُ قَلْبُ الْمُؤْمِنِ

The Prophet ﷺ said, "You should not say, 'Feed your lord (Rabbaka), help your lord in performing ablution, or give water to your lord, but should say, 'my master (e.g. Feed your master instead of lord etc.) (Saiyidi), or my guardian (Maulai), and one should not say, my slave (Abdi), or my girl-slave (Amati), but should say, my lad (Fatai), my lass (Fatati), and 'my boy (Ghulami).

أَنَّهُ سَمِعَ أَبَا هُرَيْرَةَ ؓ يُحَدِّثُ عَنِ النَّبِيِّ ﷺ أَنَّهُ قَالَ لاَ يَقُلْ أَحَدُكُمْ أَطْعِمْ رَبَّكَ وَضِّئْ رَبَّكَ اسْقِ رَبَّكَ وَلْيَقُلْ سَيِّدِي مَوْلاَىَ وَلاَ يَقُلْ أَحَدُكُمْ عَبْدِي أَمَتِي وَلْيَقُلْ فَتَاىَ وَفَتَاتِي وَغُلاَمِي

The Prophet ﷺ said, "None of you should say Khabuthat Nafsi, but he is recommended to say 'Laqisat Nafsi."

عَنِ النَّبِيِّ ﷺ قَالَ لاَ يَقُولَنَّ أَحَدُكُمْ خَبُثَتْ نَفْسِي وَلَكِنْ لِيَقُلْ لَقِسَتْ نَفْسِي

from the Prophet ﷺ, who said: "None of you should say, 'My soul has become foul,' but rather let him say, 'My soul has become remorseless.'"

عَنِ النَّبِيِّ ﷺ قَالَ: «لاَ يَقُولَنَّ أَحَدُكُمْ خَبُثَتْ نَفْسِي، وَلَكِنْ لِيَقُلْ: لَقِسَتْ نَفْسِي».