A man who encouraged two teenage boys to flog themselves until their backs were covered in bloody cuts was given a suspended jail sentence yesterday.

Syed Mustafa Zaidi, 44, a Shia Muslim, was taking part at a mosque in Levenshulme, Manchester, in the traditional Ashura festival, a ritual of lamentation commemorating the slaughter of the Prophet Muhammad’s grandson, Hussein, and his followers in the 7th century AD.

Participants encourage each other to flail themselves with a whip with a wooden handle and five chains that end in sharp blades, to recreate the suffering of the martyrs.

Zaidi, a warehouse supervisor from Eccles, Greater Manchester, was found guilty last month of child cruelty for his role in encouraging the two boys, aged 13 and 15, to use the adult bladed whip rather than one specifically designed for youngsters. Both boys required hospital treatment.

He was given a 26-week prison sentence at Manchester Crown Court, suspended by Judge Robert Atherton for 12 months. Zaidi was ordered not to allow or encourage anyone under 16 to beat themselves during the next year. The prosecution had emphasised that bringing the legal action was not an attack on the practices of Shia Muslims. However, protesters declaring that the courts should not have become involved in what is a religious ceremony paraded placards outside the court building.

Judge Atherton said: “It should be clearly understood by everyone that the jury’s verdict was not a comment upon that ceremony and no one should misinterpret it as being such.

“The law recognises that children and young persons may wish to take part in some activities which it considers they should not. It is sometimes expressed as protecting themselves from themselves.”

Zaidi had denied two counts of child cruelty amounting to “wilful ill-treatment”.The boys, who cannot be named for legal reasons, said that they had wanted to beat themselves, but not under duress and not using blades.

Carol Jackson, for the Crown Prosecution Service, said: “Given the age of the children concerned, the refusal of Mr Zaidi to admit any wrongdoing and the likelihood of such an incident occurring again, we are satisfied that it was in the public interest to bring this case.”