(22) باب أُنْزِلَ الْقُرْآنُ عَلَى سَبْعَةِ أَحْرُفٍ
Al-Zuhri said:
These modes of reading aimed at the same point, not different in respect of lawful and unlawful. (ES)
Reference (ES): Sunan Abi Dawud 1476 (ES)
In-book reference (ES): Book 8, Hadith 61 (ES)
English translation (ES): Book 8, Hadith 1471 (ES)