Wearing beautiful clothes
Say, "Who has forbidden the adornment of Allah which He has produced for His servants and the good [lawful] things of provision?" Say, "They are for those who believe during the worldly life [but] exclusively for them on the Day of Resurrection." Thus do We detail the verses for a people who know.
[Qur'aan 7:32 - Translation by Sahih International]
And when the matter is such then the verse is evidence that one should wear sublime clothes. And that one should wear beautiful clothes in gatherings and at the time of festivals. Similarly, one should wear beautiful clothes when one meets people and visits ones brothers.
Abu 'aaliyah said: When the Muslims used to meet, the would beautify themselves.
Tamiim Al-Daarii purchased a garb for 1000 Dirham in which he would pray.
Maalik bin Dinaar used to wear outstanding, first-rate 'adanii clothing.
And the clothing of Ahmad bin Hanbal was purchased in dinaars of similar value.
And where is this in relation to the one who turns away from it and wears coarse clothes made of cotton and wool and says that the clothing of Taqwaa is better.
How preposterous!
Do you think that the ones we mentioned gave up the clothing of Taqwaa. No, by Allaah!
Rather, they were the people of Taqwaa and Ma'rifah and those other than them are people who make bold claims while their hearts are empty of Taqwaa.
'Abdullah bin Mas'ud (May Allah be pleased with him) reported:
The Prophet (sallallaahu alayhi wa sallam) 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 (sallallaahu alayhi wa sallam) said, "Allah is Beautiful, He loves beauty. Arrogance means ridiculing and rejecting the Truth and despising people."
[Sahih Muslim]
Reference(s):
Al-Jaami lii 'ahkaam Al-Qur'aan by Imaam Al-Qurtubi
Page 176 Volume 7