Translate this text from English to Czech.
None knows them but Allah. To them came their Messengers with clear proofs, but they put their hands in their mouths (biting them from anger) and said: "Verily, we disbelieve in that with which you have been sent, and we are really in grave doubt as to that to which you invite us (i.e. Islamic Monotheism)."
Translation: Přišli k nim poslové jejich s jasnými důkazy, však oni ruce své si do úst svých vložili a zvolali: "Nevěříme v to, s čím jste byli posláni, a věru jsme ohledně toho, k čemu nás vyzýváte, v pochybách hlubokých."