[16].Surah An-Nahl [The Bees] : Ayat 60

Ayat 60. For those who believe not in the Hereafter is an evil description, and for Allah is the highest description. And He is the All-Mighty, the All-Wise. 

Hazrat Abu Umamah Al-Bahili (May Allah be pleased with him) reported: Messenger of Allah  [SAWW](PBUH) said, "I guarantee a house in Jannah for one who gives up arguing, even if he is in the right; and I guarantee a home in the middle of Jannah for one who abandons lying even for the sake of fun; and I guarantee a house in the highest part of Jannah for one who has good manners.''  [Abu Dawud Hadith # 4800]. 

Lesson : as mentioned above in Surah An-Nahl Ayat 60. who believe not in the Hereafter is an evil description", Withdrawal from one's right in order to end a dispute is a manly act of great merit. Likewise, this Hadith tells us that a man should avoid telling a lie even in a light vein. If he gives great importance to the rules of the Shari`ah (Islamic Law) and the Commandments of Allah and His Prophet (PBUH), he will definitely refrain from telling a lie even in a chat session or just for the sake of joke. Usually, people don't mind if one tells a lie in a jocular mood, rather some will perhaps approve it. Yet, Allah disapproves of even the harmless or trivial form of falsehood and commands His slaves to keep away from it. From all considerations, however, moral excellence carries immense weight. Because no wrong or evil thing can be shunned without it. In other words, moral excellence surpasses all forms of goodness.