A fundamentalist male sheikh told girls at a youth night that they would go to hell if they befriended non-Muslims or plucked their eyebrows.

Sheikh Mohamad Doar told a room of teenage girls in Sydney's west they needed to stop being friends with non-believers in a lecture that also covered Islamic fashion and grooming.

'The reality is, my sisters, any friendship that is not built on the fear of Allah is only going to lead to hell fire so you need to be cautious,' he said on Saturday night.

'With your actions, you distance yourself from the corrupted people.'

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Sheikh Mohamad Doar told a 'girls'-only night' they would go to hell for non-Muslim friendships

The key speaker at a 'girls'-only night' was a male sheikh who lectured them about beauty

Sheikh Doar, from the Ahlus Sunnah Wal Jamaah Association, told the forum, held at Punchbowl, that women would also be cursed by Allah if they plucked their eyebrows, waxed their body or shaved.

'You are not allowed the remove the hair of the eyebrow, it's a major sin,' he said.

'The lady who plucks her eyebrows and the one who gets them plucked, they're both cursed by Allah.'

He was referring to the hadith, describing the actions of the Prophet Mohammad, as part of a question and answer session organised by Muslim charity Sisters United.

The room of teenage girl in burqas and hijabs receive grooming advice from a male sheikh

The Muslim Sisters United charity promotes the idea of women who wear burqas

Muslim girls at the charity-organised sermon were advised to wear their hijabs loose

Taking questions from the girls, Sheikh Doar told them they needed to wear their hijabs loose and with no bright or colourful patterns.

'It cannot be see-through showing skin. The hijab needs to be as plain as possible,' he said.

'It cannot be an imitation of the disbeliever's dress code. It cannot be attracting to the eye. It cannot resemble the dress of men. It can't be a showing-off cloth.'

He also warned them they would face criticism about their dress sense from other Muslims and kafirs, an Islamic term for non-believers.

Girls at a lecture organised by Sisters United were told to avoid befriending non-Muslims

The sheikh's advice is generally rejected by secular Muslims, who also shun sharia law.

The Sunni ASWJ's fundamentalist elder, Sheikh Feiz Muhammad, last year said it was a major sin for Muslims to attend non-Muslim events like New Year's Eve celebrations

'Is it part of the sharia? Are we allowed to entertain ourselves with celebrations that are built on non-Muslim concepts?,' he said.

'If you go on the belief, ''I just want to join in and have the fun, you know, just have a night out, and enjoy myself but I don't believe in all this nonsense'', that's a major sin.'

Another ASWJ Islamic teacher, Abdulghani Albaf, told a male-only mosque at Auburn in March that Muslim men would be judged harshly by Allah if they used urinals.

'There are two mentionings, one that mentions when they would urinate that they would do so without, in public, without concealing, hiding themselves or hiding their private parts,' he thundered at the end of his 48-minute, Friday night sermon.

'How often do we see this today? Every public, every male public toilet now has urinals where they just stand up like animals and urinate in front of one another.

'What's worse is we even have Muslims using these urinals.'