[17].Surah Al-Isra' [The Journey By Night]: Ayat 36-38

 also known as Surah Bani Israel [The Children of Israel]

Ayat 36. And follow not (O man i.e., say not, or do not or witness not, etc.) that of which you have no knowledge (e.g. one's saying: "I have seen," while in fact he has not seen, or "I have heard," while he has not heard). Verily! The hearing, and the sight, and the heart, of each of those you will be questioned (by Allah).

Ayat 37. And walk not on the earth with conceit and arrogance. Verily, you can neither rend nor penetrate the earth, nor can you attain a stature like the mountains in height.

Ayat 38. All the bad aspects of these (the above mentioned things) are hateful to your Lord. 

Hazrat Abdullah bin Mas`ud (May Allah be pleased with him) reported: The Messenger of Allah [SAWW](PBUH) said, "He who has, in his heart, an ant's weight of arrogance will not enter Jannah.'' Someone said: "A man likes to wear beautiful clothes and shoes?'' Messenger of Allah [SAWW](PBUH) said, "Allah is Beautiful, He loves beauty. Arrogance means ridiculing and rejecting the Truth and despising people.''

[Muslim Book 01, Chapter 40, Hadith # 0164]. 

Lesson : as mentioned above in Surah Al-Isra Ayat 37. "walk not on the earth with conceit and arrogance" The Hadith says that a man who has even an iota of pride in his heart will be barred from entering Jannah. The Hadith word used for the smallest amount means in Arabic either the smallest ant or the particle which is radiated by sun-rays and seen through a wall-chink. Obviously, such a particle has almost a non-existent amount, but even this much is disapproved by Allah. If pride incites a man to deny the existence of Allah and His Revelation, he is sure to be thrown into Hell. He also faces Divine displeasure and the danger of infernal fire if mere consideration of riches, physical beauty, social and intellectual prominence and family status makes him proud and self-conceited and he looks down upon others, or persists in the denial of Truth. First he will receive punishment and only then will be admitted into Jannah. A good dress, however, is not counted the sign of pride.