ברכות ט׳Berakhot 9

Mishnah 3ג׳

בָּנָה בַיִת חָדָשׁ, וְקָנָה כֵלִים חֲדָשִׁים, אוֹמֵר בָּרוּךְ שֶׁהֶחֱיָנוּ. מְבָרֵךְ עַל הָרָעָה מֵעֵין הַטּוֹבָה, וְעַל הַטּוֹבָה מֵעֵין הָרָעָה. הַצּוֹעֵק לְשֶׁעָבַר, הֲרֵי זוֹ תְּפִלַּת שָׁוְא. כֵּיצַד. הָיְתָה אִשְׁתּוֹ מְעֻבֶּרֶת, וְאָמַר, יְהִי רָצוֹן שֶׁתֵּלֵד אִשְׁתִּי זָכָר, הֲרֵי זוֹ תְּפִלַּת שָׁוְא. הָיָה בָא בַדֶּרֶךְ וְשָׁמַע קוֹל צְוָחָה בָּעִיר, וְאָמַר יְהִי רָצוֹן שֶׁלֹּא יִהְיוּ אֵלּוּ בְּנֵי בֵיתִי, הֲרֵי זוֹ תְּפִלַּת שָׁוְא:

One who built a new house or who acquired new clothes says, "Blessed is He who gave us life [sustained us and enabled us to reach this time]". One must make a blessing over the bad that derives from the good, and over the good that derives from the bad. One who cries out over that which has transpired: this is a meaningless prayer. How so? If his wife is pregnant and he says, "May it be [Your] will that my wife delivers a boy", this is a meaningless prayer. If he is travelling on the road and he hears the noise of shouting in the city and he says, "May it be [Your] will that these [outcries] are not from within my house", this is a meaningless prayer.

Mishnah 4ד׳

הַנִּכְנָס לִכְרַךְ מִתְפַּלֵּל שְׁתַּיִם, אַחַת בִּכְנִיסָתוֹ וְאַחַת בִּיצִיאָתוֹ. בֶּן עַזַּאי אוֹמֵר, אַרְבַּע, שְׁתַּיִם בִּכְנִיסָתוֹ וּשְׁתַּיִם בִּיצִיאָתוֹ, וְנוֹתֵן הוֹדָאָה לְשֶׁעָבַר, וְצוֹעֵק לֶעָתִיד לָבֹא:

One who enters a city prays twice: once on his entrance and once on his departure. Ben Azzai says: Four times: twice on his entrance and twice on his departure; he gives thanks on that which has passed and he cries out for that which is to come.