Final answer:
The excerpts provided do not contain the information regarding the specific toy Malala believed her friend Safina had stolen.
Step-by-step explanation:
The toy that Malala believed her friend Safina had stolen from her is not explicitly mentioned in the provided excerpts. The referenced text from 'I Am Malala: The Girl Who Stood Up for Education and Was Shot by the Taliban' does not contain the specific detail about the stolen toy. Therefore, without access to the full text or that specific detail, providing a concrete answer is not possible.