The Tolna Rebbe ztz"l [grandfather of Mori Vi-Rabi the present Rebbe Shlita] related that when his one and only daughter was having trouble giving birth he went to the Belzer Rebbe, known as 'Reb Aharon Kdosh Hashem' and asked for a bracha. The gabbai was R' Sholom Foigel. The Rebbe asked the gabbai to repeat the name of the woman and her mother three times [that was his custom so that there should be a chazaka]. He waited a short time and then exclaimed Mazel-tov-Mazel-tov-Mazel-tov." The Tolna Rebbe looked at the clock and later found out that at that very minute his daughter had given birth to a healthy son. However, explained the Rebbe, this clear display of ruach hakodesh was no big deal for R' Aharon. He was a Malach Hashem.
זכות הצדיקים יעזור ויגן ויושיע!!
מהספר ב'קדושתו של אהרן' עמוד שטו