وَقَالُواْ لَوْلاَ أُنزِلَ عَلَيْهِ ءايَـتٌ مِّن رَّبِّهِ قُلْ إِنَّمَا الاٌّيَـتُ عِندَ اللَّهِ وَإِنَّمَآ أَنَاْ نَذِيرٌ مُّبِينٌ - أَوَلَمْ يَكْفِهِمْ أَنَّآ أَنزَلْنَا عَلَيْكَ الْكِتَـبَ يُتْلَى عَلَيْهِمْ إِنَّ فِى ذلِكَ لَرَحْمَةً وَذِكْرَى لِقَوْمٍ يُؤْمِنُونَ - قُلْ كَفَى بِاللَّهِ بَيْنِى وَبَيْنَكُمْ شَهِيداً يَعْلَمُ مَا فِى السَّمَـوَتِ وَالاٌّرْضِ وَالَّذِينَ ءامَنُواْ بِالْبَـطِلِ وَكَفَرُواْ بِاللَّهِ أُوْلَـئِكَ هُمُ الْخَـسِرُونَ
50. And they say: â€Why are not signs sent down to him from his Lord'' Say: â€The signs are only with Allah, and I am only a plain warner.'' 51. Is it not sufficient for them that We have sent down to you the Book which is recited to them Verily, herein is mercy and a reminder for a people who believe. 52. Say: â€Sufficient is Allah for a witness between me and you. He knows what is in the heavens and on the earth.'' And those who believe in falsehood, and disbelieve in Allah, it is they who are the losers. Allah tells us how the idolators stubbornly demanded signs, meaning that they wanted signs to show them that Muhammad was indeed the Messenger of Allah, just as Salih was given the sign of the she-camel. Allah says: