Kissing hands of scholars, allowed?

Tuhaf al uqool

وقال عليه السلام: لا يقبل الرجل يد الرجل، فإن قبلة يده كالصلاة له

 

And said (Imam al Redha)(as): "The man should not kiss the man's hand, for indeed (when he) kissed his hand (it is) as if he prayed to him." 

 

Tuhaf ul uqool 

 

ثم قال عليه السلام: الاشراك في الناس أخفى من دبيب النمل على المسح الاسود في الليلة المظلمة

 

Then (Imam Hasan al Askari)(as) said: "The polytheism in the people is more subtle than crawling of the ant upon the black cloth in the dark night.

 

Authenticity of above ahadith:

Shaikh Ibn Shu'ba al Harani (the compiler of Tuhuf ul uqool) says,

Preface of Tuhuf ul Uqool

 

وأسقطت الاسانيد تخفيفا وإيجازا وإن كان أكثره لي سماعا ولان أكثره آداب وحكم تشهد لانفسها ولم أجمع ذلك للمنكر المخالف بل ألفته للمسلم للائمة، العارف بحقهم، الراضي بقولهم، الراد إليهم

 

And I omitted the isnad (chains of narrations) for ease/simplicity and brevity, however, most of it I heard (directly) and because most of it is of manners and wisdom that testify to themselves, and I did not collect that for the evil mukhalif (offender/opponent) rather I compiled it for the submitter to the Imams , the one knowledgeable of their right, the one content with their saying, the one who refers to them .