1. إِذا قُلتَ في شَيءٍ نَعَم فَأَتِمَّهُ

    فَإِنَّ نَعَمٌ دَينٌ عَلى الحُرِّ واجِبُ

    If you say 'yes' to something, then fulfill it.

    For 'yes' is a debt binding upon a noble man.

  2. وَإِلّا فَقُل لا تَستَرِح وَتُرِح بِها

    لِئَلّا يَقولَ الناسُ إِنَّكَ كاذِبُ

    Otherwise, say 'no': you will find ease and give others ease by it,

    Lest people say that you are a liar.