Touching the husband’s penis with desire invalidates her Wudu, but touching it without desire does not invalidate the Wudu. If a woman touches her husband’s penis with a barrier, her Wudu is not invalidated, even if it is with desire.

If a person intends to do the mustahabb action, that will not be acceptable for the obligatory action. If a person fasts with the intention of 'Ashura, that will not be acceptable as making up for a missed Ramadan fast, but if he intends to make up the missed Ramadan fast and does that on the day of 'Ashura, then his making up the missed fast will be valid, and there is the hope that he will also attain the reward for 'Ashura, according to some scholars.

This is how to perform ‘Umrah: 1- do ghusl, 2- put on the ihram garments, 3- recite the talbiyah, 4-do tawaf (circumambulate) the Ka`bah seven times, 5- pray two rak`ahs behind Maqam Ibrahim, 6- sa‘i between as-Safa and al-Marwah seven laps, and 7- shave the head or cut the hair for men, and cut the hair for women.