This is not true. There’s no problem in going to makkah without the intention of performing Umrah.

Is it necessary for one who visits to makkah but doesn’t not perform umrah?if that person lives in yanbu. Whether it is meeting with relatives or visiting haram for salah? Some people say that if you pass a mekat and going to makkah umrah is necessary to enter makkah

Hajj and Umrah | October 15, 2017 1:13 am
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What is the authentic way of performing Zohar and Asar salat in Arafat. One Azan and two separate eqamah at the same time or two separate azan and two separate eqamah at the usual time of salat.
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Sheikh, I wanted to ask you that when we go for Umrah and we wear the Ihraam (for women when we wear the scarf) is it permissible to change the clothes we are wearing before Umrah in case we feel that they are not in the pure state due to the long travel and usage of bathrooms during the journey.