Act of Kindness - 107:6
Those who show off.
Those who show off in prayer, charity and faith.
The Women/4:142
The hypocrites think that they deceive Allah. But He leaves them (thus) deceived. When they rise for prayer, they rise lazily. Because they show off to people and remember Allah very little.
The Cow/2:264
Believers! Do not waste your charity by insulting and persecuting, like the one who does not believe in Allah and the Last Day but gives charity to show off to the people. The example of such behavior is like a rock on which dust has accumulated so that a heavy downpour leaves it bare. They will gain nothing from what they have done. Allah does not guide the disbelieving people.
The Women/4:38
These give their wealth to the people for show. They do not believe in Allah and the Last Day. Whoever has Satan as his companion has a very bad companion.
The Spoils of War/8:47
Do not be like those arrogant ones who went out of their homes, showing off to the people, to hinder the way of Allah. Allah encompasses around them what they do.
The Repentance/9:54
The only obstacle to their help being accepted is this: They have disbelieved in Allah and His messenger, they are only lazy in prayer and reluctant in charity.