The Spoils of War - 8:35 Their prayers in the Ka´bah are nothing but cheating and forbidding. Taste the torment for your disbelief.
The prayers of the polytheists:
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 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.

Act of Kindness/107:5 Those who are totally ignorant of their prayers.

The Spoils of War/8:35 Their prayers in the Ka´bah are nothing but cheating and forbidding. Taste the torment for your disbelief.