"Indeed, the postponement [of sacred months] is an increase in disbelief." The verse. Al-Kalbi's interpretation: The postponement (an-nasi') is [concerning] al-Muharram; they used to call it Safar al-Awwal, and the one who used to make it lawful for the people was Junadah ibn 'Awf.
﴿إِنَّمَا النَّسِيءُ زِيَادَةٌ فِي الْكُفْرِ﴾ الآيَةُ، تَفْسِيرُ الْكَلْبِيِّ: النَّسِيءُ: هُوَ الْمُحَرَّمُ كَانُوا يُسَمُّونَهُ صَفَرَ الأَوَّلَ، وَكَانَ الَّذِي يُحِلُّهُ لِلنَّاسِ جُنَادَةُ بْنُ عَوْفٍ
