قرآن ﴿ يا أيها النبي جاهد الكفار والمنافقين وأغلظ عليهم ومأواهم جهنم وبئس المصير ﴾ التوبة ٧٣
يقول تعالى ذكره يا أيها النبي جاهد الكفار بالسيف والسلاح والمنافقين وإختلف أهل التأويل في صفة الجهاد الذي أمر الله نبيه به في المنافقين فقال بعضهم أمره بجهادهم باليد واللسان وبكل ما أطاق جهادهم به … وقال آخرون بل أمره بجهادهم باللسان … وقوله ﴿ وأغلظ عليهم ﴾ يقول تعالى ذكره واشدد عليهم بالجهاد والقتال والإرعاب
تفسير الطبري
{ Oh Prophet! Wage jihad on the Disbelievers and the hypocrites, and be harsh to them; their dwelling is Hell, a miserable fate } Al-tawba 73
He (may His remembrance be exalted) is saying: Oh Prophet! Wage jihad on the Disbelievers with the sword and with weapons, and on the hypocrites. Expositors differ regarding the nature of jihad that Allah ordered His Prophet to wage on the hypocrites. Some of them say: He ordered him to wage jihad on them with the hand, with the tongue, and with anything by which He is capable of waging jihad on them. … Others say, rather, that He ordered him to wage jihad on them with words. … His word: { And be harsh to them } ; He (may His remembrance be exalted) is saying: And be severe against them with jihad, fighting, and terror.
Tafsir Al-Tabari