Schools of law differ over whether Hisbah is an individual (i.e. an individual obligation of all believers), or collective duty, (an obligation where once a sufficient number of Muslims undertake it, others cease to be obligated). According to Cook, "the standard view" of pre-modern scholars was that the duty was collectivecited in Cook, Forbidding Wrong, p.19: 152; 176; 201; 216 and n. 101; 243 n.109; 273f; 290f; 313; 314; 317 n.68; 324; 336 n.206; 345 bis; 347and n.65; 350 n.81, no. (5); 350 n.83; 351 n.91; 352; 365; 374; 375f; 428; cf. 18; 377; 419 though some held it was individual or both collective and individual.cited in Cook, Forbidding Wrong, p.19: 274; cf. 131n.122;160 n.112; 216 n.101; 290 n.256; 365  Rebellion However, this did not stop political rebels in the early centuries of Islam from using forbidding wrong as their slogan, according to Michael Cook. Examples were "found among the Kharijites, including the Ibadis, among the Shi'ites, including Zaydis, and among the Sunnis, especially the Malikis. Some instances of such rebels in the early centuries of Islam are Jahm ibn Safwan (d.746), in late Umayyad Transoxiana, Yusuf al-Barm in Khurasan in 776,defeated and captured in 776/7 CE Al-Mubarqa in Palestine 841/42 CE, Ibn al-Qitt in Spain in 901 CE and an `Abbasid who rebelled in Armenia in 960" CE.Cook, Forbidding Wrong, p.108-9 
Schools of law differ over whether Hisbah is an individual (i.e. an individual obligation of all believers), or collective duty, (an obligation where once a sufficient number of Muslims undertake it, others cease to be obligated). According to Cook, "the standard view" of pre-modern scholars was that the duty was collectivecited in Cook, Forbidding Wrong, p.19: 152; 176; 201; 216 and n. 101; 243 n.109; 273f; 290f; 313; 314; 317 n.68; 324; 336 n.206; 345 bis; 347 and n.65; 350 n.81, no. (5); 350 n.83; 351 n.91; 352; 365; 374; 375f; 428; cf. 18; 377; 419 though some held it was individual or both collective and individual.cited in Cook, Forbidding Wrong, p.19: 274; cf. 131n.122;160 n.112; 216 n.101; 290 n.256; 365 "At the point at which we come upon the wrongdoing, or the wrongdoer starts his mischief, we are all obligated; but once you take care of the matter, the rest of us have no further obligation." Rebellion However, this did not stop political rebels in the early centuries of Islam from using forbidding wrong as their slogan, according to Michael Cook. Examples were "found among the Kharijites, including the Ibadis, among the Shi'ites, including Zaydis, and among the Sunnis, especially the Malikis. Some instances of such rebels in the early centuries of Islam are Jahm ibn Safwan (d.746), in late Umayyad Transoxiana, Yusuf al-Barm in Khurasan in 776,defeated and captured in 776/7 CE Al-Mubarqa in Palestine 841/42 CE, Ibn al-Qitt in Spain in 901 CE and an `Abbasid who rebelled in Armenia in 960" CE.Cook, Forbidding Wrong, p.108-9 According to Cook, pre-modern Islamic scholars have generally warned against subjects forbidding rulers when and if it is foolhardy and dangerous to the subject, not because it is disrespectful to the ruler.Cook, Forbidding Wrong, p.22
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"At the point at which we come upon the wrongdoing, or the wrongdoer starts his mischief, we are all obligated; but once you take care of the matter, the rest of us have no further obligation."
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According to Cook, pre-modern Islamic scholars have generally warned against subjects forbidding rulers when and if it is foolhardy and dangerous to the subject, not because it is disrespectful to the ruler.Cook, Forbidding Wrong, p.22