First of all, there is NOTHING like Istakhra done by someone else in Islam :)
Istakhara is a Dua, and when a person recites the dua, it's for his own action that if it's good for him or not. But most people these days just read the Arabic (without understanding) and think that Istakhara is done, which is wrong.
Secondly, there is NOTHING like the RESULT of istakhara as well. No one sees white, red things or black clouds as a result of istakhara. As it's JUST a dua, so do you see any result of a normal dua? Then how do you expect some special result, like a dream or bad/good happening of istakhara??
Here is a translation of Istakhara. Read it yourself and judge if what I said above is true or not (read with understanding, please).
According to a traditional report transmitted on the authority of
Muhammad ibn al-Munkadir, it was Jabir ibn 'Abdi'llah (may Allah be
well pleased with him and with his father) who said:
"Allah's Messenger (Allah bless him and give him peace) used to teach
us how to seek guidance in choosing the best option available in a
practical enterprise [al-istikhara fi 'l-amr], just as he would
sometimes teach us a Chapter [Sura] from the Qur'an. :
"'If one of you is concerned about some practical undertaking, or
about making plans for a journey, he should perform two cycles of
ritual prayer [rak'atain], not as an obligatory observance [farida],
but voluntarily. Then he should say:
'"O Allah, I ask You to show me what is best, through Your knowledge,
and I ask You to empower me, through Your power, and I beg You to
grant me Your tremendous favor, for You have power, while I am without
power, and You have knowledge, while I am without knowledge, and You
are the One who knows all things invisible. O Allah, if You know that
this undertaking is in the best interests of my religion, my life in
this world, and my life in the Hereafter, and can yield successful
results in both the short term and the long term, then make it
possible for me and make it easy for me, and then bless me in it. If
not, then turn it away from me, and make it easy for me to do well,
wherever I may happen to be, and make me content with Your verdict, O
Most Merciful of the merciful.'"
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