'Abdullah reported that the Prophet, may Allah bless him and grant
him peace, said, "You must be truthful. Truthfulness leads to dutifulness
and dutifulness leads to the Garden. A man continues to tell the truth
until he is written as a siddiq with Allah. Beware of lying. Lying leads
to deviance and deviance leads to the Fire. A man continues to lie until
he is written as a liar with Allah."
Umm Kulthum, the daughter of 'Uqba ibn Abi Mu'ayt, reported that
she heard the Messenger of Allah, may Allah bless him and grant him peace,
say, "Someone who makes peace between people by saying something good or
relates something good is not a liar."
'Abdullah said, "Lying is not correct, neither
in seriousness nor in jest. None of you should promise his child something
and then not give it to him."
حَدَّثَنَا آدَمُ، قَالَ: حَدَّثَنَا شُعْبَةُ، عَنِ الأَعْمَشِ، عَنْ يَحْيَى بْنِ وَثَّابٍ، عَنِ ابْنِ عُمَرَ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ: الْمُؤْمِنُ الَّذِي يُخَالِطُ النَّاسَ، وَيَصْبِرُ عَلَى أَذَاهُمْ، خَيْرٌ مِنَ الَّذِي لاَ يُخَالِطُ النَّاسَ، وَلاَ يَصْبِرُ عَلَى أَذَاهُمْ.
Ibn 'Umar reported that the Prophet, may Allah bless him and grant
him peace, said, "The believer who mixes with people and endures their
injury is better than the person who does not mix with people nor endure
their injury."