Is touching or scratching one's private parts among the things that invalidate prayer and ablution, and does uttering obscene language spoil ablution and prayer?

Touching the private parts—the penis—directly with the palm of the hand invalidates ablution, according to the more preponderant opinion of the scholars. One must perform ablution again if the touching occurred after ablution and before prayer. Prayer is invalidated if the touching occurred during it. There is no difference in invalidation between touching with the palm or the back of the hand. Touching with other than the hand does not invalidate ablution. As for obscene language, it does not invalidate ablution or prayer, but a Muslim must guard his tongue.