Their prayer at the House of Allah is nothing except whistling and clapping of hands; then you taste the punishment because you were disbelieving.
The worship of disbelievers at Mecca during Messenger’s time is portrayed in this verse. Today, Fujjar all over the world are only reading these verses. If anyone utilizes Adhikr as the Insight and Criterion, he can understand that these disbelievers’ mode of prayer is worse than any ‘other-people’. The hypocrites and their blind followers are soulless and worthless people. So, they are denoted as the worst creatures without utilizing their intelligence. Both verses 13: 14 and 40: 50 end as: “The prayer of disbelievers does not increase anything except astray”. Today, Masjids are huge buildings all over the world, but there is no Guidance—Adhikr in any Masjid. So, Masjids are now not the houses of Allah but are the houses of Satan. Without being a believer with Adhikr nobody can become a believer. Without being a believer, no prayer or deed will be accepted as explained in verse 2: 186. Instead, they will get the Hell as a fine for living here aimlessly and heedlessly as explained in verse 7: 179. Those wrath affected and strayed people are imagining sexual organs of opposite genders in their hearts during their prayer as explained in verses 4: 142-143. They are not realizing that all their feelings and deeds are being recorded in the Book fastened around their neck as told in 7 places 17: 13-14; 18: 49; 23: 62-64; 36: 12; 45: 28-29; 58: 6 and 78: 27-29. Both they and their Jinn-comrade mentioned in verses43: 36-39 are the inmates of Hell where there is no gap of a needle in between its inmates. In it they all will have coincided with sexual organs of opposite genders, it is because they were thirsty for illegal sex in this world as explained in verse 6: 28. See explanations 2: 166-169; 4: 91 and 7: 205-206.