6) The Gemara in Chullin (75b) rules that if a pregnant animal is shechted [slaughtered], its fetus may be eaten on a de’O’raisa level without being shechted. However, if the fetus walks or moves on the ground, Chazal required that it be shechted because of “maris ayin.” The Rashba (Shu”t 525) rules that one should say a berachah on this shechitah just as one says a berachah on any derabonon. However, the Besamim Rosh (283) and Pri To’ar (19:1) disagree, arguing that no berachah is made on a mitzvah that is solely due to maris ayin.
The Gemara in Shabbos (23a) rules that if a person has windows facing different directions, he must light a Chanukah menorah in each of them due to “chashad,” so that somebody passing an empty window will not suspect him of neglecting the mitzvah. The Ran writes that no berachah is made when lighting the additional menorahs. The Pri Chodosh and Pri To’ar equate the concepts of maris ayin and chashad and maintain that the Ran disagrees with the Rashba, although the Kreisi U’Pleisi (13:4) differentiates between the two concepts and argues that there is no disagreement between the Ran and Rashba.
The Michtam L’Dovid (Orach Chaim 23) suggests that there is no dispute, as the Ran is discussing a case in which a person already said a berachah when lighting his first menorah. (R’ Ozer Alport, Parsha Potpourri)
