Does a teacher's displeasure with his student—whether rightfully or wrongfully—lead to a lack of blessing in the student's work and his not entering Paradise?

The sins and disobedience of a servant are what eradicate blessings and prevent entry into Paradise. However, the unjustified displeasure of a creature does not prevent entry into Paradise. Whoever fears Allah and remains steadfast in His religion, Allah will be pleased with him, bless him, and admit him into His Paradise. It is obligatory to respect the teacher and acknowledge his right, but that does not prevent respectfully discussing matters with him if he errs, because the right of Allah takes precedence over the rights of creation.