Kissing nobody’s hand is Sunnah, but kissing the hand of the Messenger of God, peace be upon him and his family, and His Caliph’s hand for blessing is permissible; As some of our helpers informed us and said: «أَرادَ رَجُلٌ أَن یُقَبِّلَ یَدَ الْمَنْصُورِ فَأَبْعَدَ یَدَهُ وَ قالَ لَهُ: أَ تُریدُ أَنْ تُغِرَّنِي کَما تُغِرُّ هَؤُلَاءِ الدَّجاجِلَةَ؟! لا یُقَبِّلُ الرَّجُلُ یَدَ الرَّجُلِ إلّا أَن یَکُونَ إِماماً مُفْتَرَضَ الطّاعَةِ! قالَ الرَّجُلُ: وَاللّهِ ما فَعَلْتُ ذَلِكَ إلّا لِأَعْلَمَ أَهُوَ مِنَ الدَّجاجِلَةِ أَمْ لا، فَعَلِمْتُ أَنَّهُ لَیْسَ مِنْهُمْ»; “A man wanted to kiss Mansoor’s hand, so he moved his hand away and said to him: Do you want to deceive me just as you deceive these Dajjals?! Nobody kisses nobody’s hand unless he is an Imam to whom obedience is obligatory! (After that) The man said: I swear to God, I did not do that unless to know if he is also from Dajjals or not, so I realized he is not from them”! Nevertheless, kissing the hands of the parents, if they are Muslims, has no problem; as one of our companions informed us and said: «سَأَلْتُهُ عَنِ الرَّجُلِ یُقَبِّلُ یَدَ والِدَیْهِ، فَقالَ: لا بَأسَ بِهِ، أَما سَمِعْتَ قَولَهُ تَعَالَى: ﴿وَاخْفِضْ لَهُمَا جَنَاحَ الذُّلِّ مِنَ الرَّحْمَةِ﴾؟!»; “I asked his honor about a man kissing the hands of his parents, he said: it has no problem, have you not heard the word of God Almighty who says: 'And lower to both of them the humble wing of kindness'[1]?!”, but kissing the hands of tyrants and scholars who follow them is forbidden; as one of our companions informed us and said: «سَمِعْتُ الْمَنْصُورَ یَقُولُ: مَنْ قَبَّلَ یَدَ ظالِمٍ یُظْهِرُ بِذَلِكَ وَلایَتَهُ فَکَأَنَّما قَبَّلَ اللّاتَ وَ الْعُزَّى»; “I heard Mansoor says: whoever kisses the hand of an oppressor to declare his friendship to him, it is like that he has kissed Lat and Uzza” and in the book “Return to Islam”[2] it has been said that his honor refused to kiss an arrogant scholar’s hand.