عَنْ سَهْلِ عَنْ أَبِيهِ (مُعَاذِ بْنِ أَنَسٍ الْجُهَنِيِّ رَضِيَ اللَّهُ عَنْهُ) عَنْ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ أَنَّهُ قَالَ: ((الْجَفَاءُ كُلُّ الْجَفَاءِ وَالْكُفْرُ وَالنِّفَاقُ مَنْ سَمِعَ مُنَادِيَ اللَّهِ يُنَادِي يَدْعُو إِلَى الْفَلَاحِ وَلَا يُجِيبُهُ))
It is narrated from Sayyiduna Mu'adh bin Anas al-Juhani, may Allah be pleased with him, that the Messenger of Allah, peace and blessings be upon him, said: This is sheer injustice, rather it is disbelief and hypocrisy, that a person hears the caller (muezzin) inviting towards success, yet he does not respond to him.